کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4430609 1619858 2011 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Multi-criteria ranking and receptor modelling of airborne fine particles at three sites in the Pearl River Delta region of China
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Multi-criteria ranking and receptor modelling of airborne fine particles at three sites in the Pearl River Delta region of China
چکیده انگلیسی

The multi-criteria decision making methods, Preference Ranking Organization METHods for Enrichment Evaluation (PROMETHEE) and Graphical Analysis for Interactive Assistance (GAIA), and the two-way Positive Matrix Factorization (PMF) receptor model were applied to airborne fine particle compositional data collected at three sites in Hong Kong during two monitoring campaigns held from November 2000 to October 2001 and November 2004 to October 2005. PROMETHEE/GAIA indicated that the three sites were worse during the later monitoring campaign, and that the order of the air quality at the sites during each campaign was: rural site > urban site > roadside site. The PMF analysis on the other hand, identified 6 common sources at all of the sites (diesel vehicle, fresh sea salt, secondary sulphate, soil, aged sea salt and oil combustion) which accounted for approximately 68.8 ± 8.7% of the fine particle mass at the sites. In addition, road dust, gasoline vehicle, biomass burning, secondary nitrate, and metal processing were identified at some of the sites. Secondary sulphate was found to be the highest contributor to the fine particle mass at the rural and urban sites with vehicle emission as a high contributor to the roadside site. The PMF results are broadly similar to those obtained in a previous analysis by PCA/APCS. However, the PMF analysis resolved more factors at each site than the PCA/APCS. In addition, the study demonstrated that combined results from multi-criteria decision making analysis and receptor modelling can provide more detailed information that can be used to formulate the scientific basis for mitigating air pollution in the region.

Research Highlights
► We undertook multicriteria ranking and source apportionment of fine particles in Hong Kong.
► Ranked the air quality at three sites in the order: rural > urban > roadside.
► Identified six common fine particle sources at the sites.
► Provided useful information for future mitigating measures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volume 409, Issue 4, 15 January 2011, Pages 719–737
نویسندگان
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